getDimensions()
getDimensions() : mixed
Should return object dimensions, if possible.
Return NULL otherwise
Describes standard adapter interface
toImage(array $size = array(), string $path) : string
Convert object to a preview image, if possible.
Return NULL if not possible
Size array MUST allow for either height and/or width to be set without flipping the heck out.
Keep in mind the return string path is temporary and should be processed accordingly
| array | $size | Contains width, height keys |
| string | $path | Path to source file |
Path to sized file